typedef  void (*soap_init_fn)(struct soap *); 
typedef  int (*soap_serve_fn)(struct soap *);  
typedef  void (*soap_end_fn)(struct soap*); 
struct SOAPHandlerStruct
{
    soap_init_fn soap_init_fn_ptr;
    soap_serve_fn soap_serve_fn_ptr;
    soap_end_fn soap_end_fn_ptr;
};

Example 4: SOAPHandlerStruct definition.